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Location: Annapolis, Md
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Re: Raising Entire Mast for Boom Clearance
Raising the mast a foot and ending up with a structurally sound solution is no small feat. I would advise you not to do it for a variety of reasons, but it sounds like you have your mind made up.
Some of the reasons not to do this are that the geometry of the rigging changes with the net result that you may need to replace the genoa or move or add jib sheet lead tracks further aft which in turn may require adding lead blocks to the winches. This is because the combination of change in angle of the forestay and your decision to fly the genoa higher will move the lead block quite far aft. You will also need to move the spreaders and maybe the chain plates.
Raising the height of the mast and sails a foot will be quite noticable to the way the boat feels and sails. The boat will heel more, roll more, pitch more, and need to be reefed a lot sooner.
There is a huge side force on a mast step. Designing and building mast step that is a able to resist this over turning force would be very difficult in the confined space in the bilge. I would probably only raise the mast step a few inches at most, and then splice onto the mast an extension for the rest of the height you are looking for.
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Curmudgeon at Large- and rhinestone in the rough, sailing my Farr 11.6 on the Chesapeake Bay
Last edited by Jeff_H; 01-15-2018 at 11:20 AM.